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use strict; | |
use warnings; | |
use feature 'say'; | |
my ($num1,$num2) = (1,1); | |
for my $i (1..(shift(@ARGV) or 1000)) { | |
say "[$i]: ", 1 and next if grep {$_ == $i} (1,2); | |
say "[$i]: ", $num1 = $num1 + $num2 if $i % 2 == 0; | |
say "[$i]: ", $num2 = $num1 + $num2 if $i % 2 == 1; | |
} | |
=encoding utf8 | |
=head1 NAME | |
フィボナッチ数列出力プログラム | |
=head1 USAGE | |
perl fibonacci.pl <num> | |
引数が無い場合は1000番目のフィボナッチ数まで出力される | |
=cut |
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